As far as I know, the only way to get to another person's iTrader profile is to click on it from a post they have made. You can go to their user profile, then to statistics, then click on "find all posts by user." Then you can just click on the first one that comes up, which will take you to a post they have made. From there, click on their iTrader link that's under their Name/Join Date/Location/etc.